JPS61169435A - Paper guide device - Google Patents

Abstract

PURPOSE:To facilitate clearing jammed paper by forming a paper guide member on movable side in such a manner as to displace at plural places in a paper guide device of a copying machine or the like. CONSTITUTION:A movable guide plate 120 comprises two guide plates, that is, the first guide plate 121 and the second guide plate 122. The guide plate 122 is mounted on the guide plate 121 in such a manner as to turn on a shaft 123. The movable guide plate 120 is pulled by a tension spring 104, a positioning projection 122b of the guide plate 122 collides with a guide plate 102, and the contact portion 122a of the guide plate 122 collides with the back of the guide plate 121, so that the positional relationship among the guide plate 121, the guide plate 122 and the guide plate 102 is determined. As shown in the drawing, a taper portion 124b is disposed on the left side of an opening portion 124a of a base plate 124, that is, in the opening direction of the movable guide plate 120.

Description

[Detailed Description of the Invention] [Scope of Industrial Application] The present invention relates to a paper guide device, and more particularly, to a paper guide device in an information recording device such as a copying machine or a recording machine, and relates to a guide member such as a guide plate. [Prior Art] Fig. 3 is a schematic diagram of a copying machine to which the present invention can be applied. In the figure, 1 is the main body of the copying machine, 3 is the pedestal, 2 is the additional paper feed deck,
415 is a paper feed cassette. The additional paper feed deck 2 is an option and is used by being attached to the bedside table 3 according to the user's wishes. When the paper 6 loaded on the additional paper feed deck 2 is fed from the deck, it passes through a hole in the bottom plate of the copying machine body 1 and advances into the copying machine body 1 as shown by the arrow, where the photosensitive drum 7 transfers the copy image. The paper is received, sent on the conveying section 8, fixed by the fixing roller 9, and discharged onto the tray 10.

FIG. 4 is an enlarged view of the vicinity of the connecting portion between the additional paper feed deck 2 and the copying machine main body 1 in the copying machine shown in FIG.

The paper 6 loaded on the deck 2 is fed by a paper feed roller 201, guided between an upper guide 202 and a lower guide 203, and conveyed by a feed roller 204 to the copying machine main body.
The guide plate 102 and the movable guide plate 103 are inserted into the guide plates 102 and 102', which extend downward from the opening hole 101a of the bottom plate 101 and have trumpet-shaped ends.
The leading edge of the sheet conveyed between the registration rollers 108
The guide plate 102 and the movable guide plate 103
A loop is formed in the triangular space formed between the two to perform skew correction and timing alignment with the copy sequence. Thereafter, the image is sent out between the upper transfer guide plate 109 and the lower transfer guide plate 110 by the registration roller 108 , and the copy image is transferred from the photosensitive drum 7 by the transfer separation charger 111 and sent to the fixing roller 9 . Reference numeral 5 denotes a paper in a cassette housed in the copying machine main body 1, 112 a paper feed roller for feeding out the paper 5 in the cassette, and 107 a push-up lever supporting the transfer separation section.

The movable guide plate 103 is rotatably supported around a fixed shaft 105, one end is hung on the movable guide plate 105, and the other end is guided by a tension spring 104 hooked on a spring hook 106aK provided on the stay 106. Board 102
' is positioned by being pressed against the upper end of '. A jamming force occurs during copying, and the guide plate 102. Guide plate 102
', when the paper stops between the movable guide plate 103, the user opens the cover (not shown) of the main body, pinches the knob IQ3a attached to the movable guide plate 103, and pulls the movable guide plate 106 towards the tension spring 104. It opens in the direction of the arrow against the tension, and the stopped paper can be taken out from the opening A created. The movable guide plate 103 can be opened until its lower end abuts the push-up lever 107 (the position indicated by the two-dot chain line in the figure).

[Problem that the invention seeks to solve]

Now, when the user takes out the paper from the opening A, the part of the paper between the guide plate 102 and the movable guide plate 103 is easy to take out.
The gap between the two guide plates is narrow and the paper between the two guide plates cannot be opened, making it very difficult to take out the paper. There is a risk that

To prevent this, move the movable guide plate 103 to the guide plate 102'.
It is possible to eliminate the fixed guide 102' by extending it to the part shown in FIG.
The opening must be wide over the entire area in which the movable guide opens, which is disadvantageous in terms of strength and in terms of preventing the developer from falling onto the Veguistal 3 side (toner scattering outside the machine).

[Purpose of the invention]

The present invention has been made in view of the drawbacks of the above-mentioned conventional example, and an object of the present invention is to provide a paper guide device that is easy to remove jammed paper and has a simple configuration.

[Means for solving problems]

The object of the present invention is achieved by configuring the movable sheet guide member so that it can be displaced at a plurality of locations.

〔Example〕

Hereinafter, the present invention will be explained based on an illustrated embodiment, and the same members as those in FIG. 3 are designated by the same numbers, and a redundant explanation will be omitted.

FIG. 1 shows one embodiment of the invention. FIG. 2 is a perspective view of the movable guide plate in the embodiment shown in FIG.

The movable guide plate 120 is composed of two guide plates, a first guide plate 121 and a second guide plate 122, and the second guide plate 122 is rotatable around an axis 123.
It is attached to 1. The movable guide plate 120 is pulled by the tension spring 104, and the positioning protrusion 12 of the second guide plate
2b (located in two places on the front side and back side) is the guide plate 102
The abutting portion 122a of the second guide plate abuts against the first guide plate.
By hitting the back surface of the guide plate 121, the positional relationship between the first guide plate 121, the second guide plate 122, and the guide plate 102 is determined. As shown in the figure, a tapered portion 124b is provided on the left side of the opening 124a of the bottom plate 124, that is, in the direction in which the movable guide plate 120 opens.

The paper becomes movable due to a jam between the guide plate 120 and the guide plate 10.
2, the user pinches the knob 121a attached to the first guide plate 121 to open the movable guide plate 120 in the direction of the arrow.

When the movable guide plate 120 starts to open, the lower part of the second guide plate 122 first touches the tip 12 of the tapered part 124b of the bottom plate.
4(!), the second guide plate 122 rotates slightly counterclockwise around the shaft 123, and while being guided so that its lower end rubs against the tapered part 124b, the upper part of the second guide plate 122 finally hits the push-up lever 107. In this case, the bottom is the bottom plate 1
24 (shape 11 indicated by the two-dot chain line in the figure).

After opening the movable guide plate 120 all the way, the user can take out the stopped paper from the opening B.

With a movable guide plate as shown in Fig. 6, there is no narrow gap between two fixed guide plates as in the conventional guide plate shown in Fig. 2, so stopped paper can be easily and reliably taken out. Furthermore, the tapered portion 124b provided on the bottom plate allows the movable guide plate 120 to be opened and closed smoothly, and the bending of the tapered portion also serves to strengthen the bottom plate in the longitudinal direction in the drawing.

As described above, in the embodiment of the present invention, the rotating shaft.

By providing a movable guide consisting of two connected guide plates on the paper conveyance path that passes through the frame member that constitutes the frame of the main body, the workability of jam removal on the same conveyance path can be greatly improved. This is very effective when connecting various application devices attached to the main body of a copying machine that transport paper.

In the above explanation, the tension spring 104 is referred to as the movable guide plate 120.
The position at which it is hung may not be on the first guide plate 121, but between the shaft 126 of the second guide plate 122 and the abutting portion 122a. It goes without saying that the shape of the guide plate is not limited to the embodiment shown in FIG. In this case, it is possible to use not only a shaft but also a flexible member. In other words, it is sufficient that the second guide plate 122 is displaceable with respect to the first guide plate 121.
1 is also not limited to rotation. Also, the number of divisions is 2.
[Effects of the Invention] Since the present invention has the configuration as described above, it has the effect of facilitating work such as jam removal.

[Brief explanation of drawings]

FIG. 1 is a front view of one embodiment of the present invention, FIG. 2 is a perspective view of the movable guide plate in the embodiment of FIG. 1, FIG. 6 is a schematic diagram of a copying machine according to the present invention K, and FIG. It is a front view of a conventional example.

Claims (2)

[Claims] (1) a first paper guide member forming a part of the paper passage path; provided opposite to the first paper guide member;
second and third paper guide members forming a paper passage path together with the paper guide member, the second paper guide member being movable with respect to the first paper guide member, and the third paper guide member being movable with respect to the first paper guide member; A paper guide device, wherein the paper guide member is movably supported by the second paper guide member. (2) having an elastic member that pushes the second and third paper guide members in the direction of the first paper guide member;
When the second and third paper guide members are pressed against the first paper guide member by an elastic member, the first, second and third paper guide members 2. The paper guiding device according to claim 1, further comprising a positioning portion for maintaining the mutual positional relationship of the three paper guiding members in a state in which the paper passing path can feed the paper.